SLOS814D March 2014 – September 2016 TAS5421-Q1
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
- PWP|16
Thermal pad, mechanical data (Package|Pins)
- PWP|16
Orderable Information
1 Features
- Mono BTL Digital Power Amplifier
- 22-W Output Power at 10% THD+N into 4 Ω
- 4.5-V to 18-V Operating Range
- 85% Efficiency into 4 Ω
- Differential Analog Input
- Speaker Guard™ Speaker Protection with Adjustable Power Limiter
- 75-dB Power-Supply Rejection Ratio (PSRR)
- Load Diagnostic Functions:
- Open and Shorted Output Load
- Output-to-Power and Output-to-Ground Shorts
- Protection and Monitoring Functions:
- Short-Circuit Protection
- 40-V Load Dump Protection per ISO-7637-2
- Output DC Level Detection while Music is Playing
- Overtemperature Protection
- Overvoltage and Undervoltage Protection
- Thermally Enhanced 16-Pin HTSSOP (PWP) Package with PowerPAD™ Package (Pad Down)
- Designed for Automotive EMC Requirements
- Qualified According to AEC-Q100 Grade 2
- ISO9000: 2002 TS16949 Certified
- –40°C to 125°C Ambient Temperature Range
2 Applications
- Automotive Emergency Call (eCall) Amplifier
- Telematics Systems
- Instrument Cluster Systems
- Infotainment Audio
3 Description
The TAS5421-Q1 is a mono digital audio amplifier, ideal for use in automotive emergency call (eCall), telematics, instrument cluster, and infotainment applications. The device provides up to 22 W into 4 Ω at less than 10% THD+N from a 14.4-Vdc automotive battery. The wide operating voltage range and excellent efficiency make the device ideal for start-stop support or running from a backup battery when required. The integrated load-dump protection reduces external voltage clamp cost and size, and the onboard load diagnostics report the status of the speaker through I2C.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TAS5421-Q1 | HTSSOP (16) | 5.00 mm × 4.40 mm |
- For all available packages, see the orderable addendum at the end of the datasheet.
Simplified Block Diagram
Output Power Efficiency
